Action Taken
DERM turns on INFLATABLE RESTRAINT indicator light.
NOTE:
Test numbers refer to test numbers on diagnostic chart. For circuit number identification, see WIRING DIAGRAMS.
WARNING:
To avoid air bag deployment while troubleshooting the SIR system, only use test equipment specified in diagnostic charts. Under no circumstances should battery powered test equipment or test light be used. Carefully follow all instructions.
- Checks for short between DRIVER SOURCE SENSE and DIAGNOSTIC REQUEST circuits.
- Checks for short between DRIVER SOURCE SENSE and SERIAL DATA circuits.
- Checks for short between DRIVER SOURCE SENSE circuit and circuit No. 451.
- Checks for short between DRIVER SOURCE SENSE circuit and HVAC sensor input circuits. These circuits have a 5-volt potential and could be causing 5-volt reading on DRIVER SOURCE SENSE circuit.
- Checks for additional 5-volt sources which could be shorted to DRIVER SOURCE SENSE circuit.